Automatic device for operating valves and other mechanisms.



0. WINTER. 65 P. W. WATERMAN. AUTOMATIC DEVICE FOR OPERATING VALVES ANDOTHER MECHANISMS.

AIPLIGATIOH FILED F3317. L906,

PATENTED NOV 27, 1906.

3 SHEETSSHBET 1 No. 886,794. PATENTED NOV. 27, 1906.

0. WINTER & F. W. WATERMAN. AUTOMATIC DEVICE FOR OPERATING VALVES ANDOTHER MECHANISMS.

APPLICATION FILED T11R17. 1906 3 SHEETSSHEET 2 @MM/Wa No. 836,794.PATENTED NOV. 27, 1906.

O. WENTER & F. W. WATERMAN. AUTQMA'IIC DEVICE FOR OPERATING VALVES ANDOTHER MECHANISMS.

APPLICATION FILED FBB,17,1906.

3SHEETS-SHEB a vm'rmzssss v mveN'rqRs Maul "v UNITED STATES PA OFFICE;

OSCAR WINTER AND FRED WALTER WATERMAN, OF EL AUTOMATIC DEVICE FOROPERATING VALVES AND OTHER MECHANISMS.

i No 836,794.

To all whom it may concern:

Be it known that-we, OSCAR WINTER and FRED WALTER WATERMAN, of Elyria,Lorain county, Ohio; have invented a new and useful Automatic SafetyDevice for O erating Valves and other Mechanisms, oiw ich the followingis a full, clear, and exact description, reference being bad to theaccompanyon the line IV IV an excessive speed of the parts controlled bysuch valve or mechanism; also, to provide a device of this kind whichcan also be readily operated by hand whenever desired, which can bequickly reset, which can be readily tested at any time, and which isfree from complicated mechanism or delicate arts of a character likelyto become injure or deranged; also, to provide means of this characterwhich will not be afiected by thevibration of the engine or othermachinery and which is certain and reliable in its action.

Other objects and advantages of our invention will hereinafter appear. 1

With these objects in view our invention consists in the novelconstruction, arrangement, and colglbination of arts, all substantiallyas hereinafter descri ed, and pointed out in the appended claims.

In the drawings We have shown ourinvention as applied to the throttle oradmission valve of a steam-engine but it will be readily understood thatit isequally applicable to other forms of valves, to electricalswitches, and to various other mechanisms where an automaticspeed-limiting device is desirable.

In the drawings the numeral ,2 indicates the admission or throttle valveof a steamengine 3, and 4 indicates the stem of such valve.

5 is a bent lever whose shorter arm is loosely connected to the stem 4and which is pivoted-at 6 to a link 7, which is .pivotally connected tothe valve-casing at 8.

Specification of Letters Patent, Application filed February 1'7, 1906.Serial No. 801,690.

' is the steam-supply pipe hontrolled by thevalve2.

Connected to the longer arm of theleverEg" portion g 6 to be engagedwith a detent or lockin devicej is a vertical rod 10, whose lower end isprovided with a latch 1 1, which is arranged YRIA, Ohio! 12 for thepurpose of normally-1101, ing the valve 2 in its openposition.- Thedetent 12 1 preferably consists of a roller loosely mount "1 ed on a pm13, carried bya bracket or lug 14' of the stand or support 15 for thetrip meclrr anism presently to be described, but an y' other suitableform of detent or looking device, may be-used. The latch 11 isalso .7

shown as provided with a projecting handlel portion or ring 1 1, whichprovides meansfor the manual disengagement of said latch l the detent12. I

The lever 5, rod 10, and latch llfare made. of suflicient weight so thatwhen the latch is disengaged from the detent they will operate.automaticallyupon the valve-stem 4to close the valve 2. I J if The latch11 normally restsagainst a slid: ing bolt 16, which'is arranged in thelower part of an inclos ing casing 17, which is SUP...

ported by the stand 15, before referred to. ,1

18 is a hammer which is carried by an arm 18, pivoted to the centralshaft or pin19,

and which is normally held in the raised position shown in full lines inFig. 2 by means of the awl or detent 20. This pawl'orv detent is ormedby one arm of a lever which isv pivoted at 21, and its oppositearmis'c'ounw, terweighted, as shown at 22.

the casin in position to be. operated;fro1n the outs i e andwhichis-connectedto the,

counterweighted arm of the lever 20; button provides additional meansfor the manual operation of the device. 7

24 is an electromagnet whose armature 25: is connected to the detentbymeans'of the rod or bar 26. I

"27 is a counterweighted arm which -is?'se-;

the counterweight 27 a of said arm :beingia justable thereonv to anydesirable positions The electromagnets 24 are connected-in a ,jq, 23 isa pumbutton 'proJects th ough i circuit: with abattery 28 or othersourceof. 1'05 electric energy, as shown in- Fig. 5, t-he'cir-.

cuit through the battery and magnets being:

made through a centrifugal-governor actib ated switch 29. ,This governoris attached I to a moving part of the engine or other mech- 1 to anismto be controlled, and when a predetermined speed has been reached theoutward ammer now falls and strikes the bolt 16 with a sharp suddenblow, which disengages" The weight sume the position shown in dottedlines in Fi 1, and thereby closes the valve 2.

11 order to permit the magnets to be energized in case of necessityfromany point in the'building, the circuit before describedmay be 1providedwith any desired number of branc in Fig. 5 and in which are placedpush-buttons 31 or other manually-"operated circuitclosing devices; a

In order to prevent the latch 11 being disengagedfronr the detent 12 byreason of the vibration, the corner portion 1 1? of said latch iscarried downwardly a sufficient distance to give it a secure hold on thedetent-roller 12.

The trip device is reset by raising the counterweighted lever 27 and byengaging the latch 11 with a detent 12-. v

The advantages of our invention consist in the arrangement of the leverconnections to wit the valve or other part to be operated, so that theyact as a counterweight, no further wei MS or springs being required,together the latch arrangement whereby the lever connections arenormally prevented from operating the valve. All the parts are of simpleconstruction, and the tripping mechanism can be placed on a solidfoundation or located on a part of the engine which is free fromvibration. The casing or closure for the trip mechanism is preferablydust- 'proof, While permitting access toall partsof the device forexamination and testing, which may be done at any time without shuttingdown the engine. The trip mechanism can be located at such points thatthere is no necessityfor exposed wirin and the provision of thetrip-hammer for re leasing the latch insures a certain and reliableoperation of the device. A further advantage consists in the readinesswithwhich the device may be op- 7 erated by hand to open the valve incase of necessity, J r

ItIWll be seen'that our arrangement consists, essentially, in the use ofa normally open valve arranged to close by gravity in J connectionwith'means for normallv prevent- -6o theivalve-from closing and whichwhen re eased permits it to close by gravity alone, no motive device ofany kind for thisvpurpose .bein'g-requiredor used,

Various changes may be made in details of circuits 30, one of which isshown construction and arrangement without doparting from our invention,since What we claim is 1. In mechanism. of the character described, thecombination with a normally open controlling member arranged to movefrom one position to another by gravity,

means for normally holding the member against such movement, andelectromagnetic holding means for controlling the release of the latchmeans to permit such movement under predetermined conditions;substantially as described.

2. In mechanism of the character described, the combination with avalve, lever connections arranged to operate'said valve by their weight,a latch device for preventing such operation, a trip-hammer arranged,.

when released, to fall and release said latch device by a' hammer-blow,and electromagnetic means whose circuit is arranged to be closed underpredetermined conditions for controlling the release of the hammer;substantially as described.

' 3. In mechanism of the character described, the combination With alatch device, of a sliding bolt engaging said device, and a pivoteddrop-hammer arranged to actuate saidvbolt by a direct hammer-blowthereon; substantially as described.

' 4. In a device of the character described, the combination with thevalve or other part to be controlled, of 'a depending lever attachment,a latch for said attachment; a triphammer for releasing the latch, alocking device for the trip-hammer, and means for releasing the lockingdevice including .a normally open electric circuit, with means forclosing said I circuit; substantially as de* scribed.

5. Mechanism of the character described, having a normally open valvearranged to close by gravlty, means for normally holding the gravitydevice against such movement, and means for releasing the holding meanscomprising mechanism which is not directly connected to any otherengine-operating part; substantially as'described.

6. In a device of the character described,- the combination with'a valveor other part to be controlled, of a lever connected thereto, a

, rodconnected to said lever, a latch device for said rod, a trip-hammerfor releasing the latch device, a locking device for the hammer, anelectromagnet for releasing the locking device, and means for energizingsaid magnet upon predetermined conditions; substantially as described.

7. In the safety device for'engines and the like, thecombination with avalve, of a wei hted lever connected to said valve, a late device fornormally holding. the valve in-open position, a trip-hammer forreleasing the latch'Ldevice, and means for controlling the operation ofthe tripehammer; substan tially as described.

8. In a device of the character described, a latch, a pivotedcounterweighted trip-hammer arranged to release said latch, means fornormally retaining the trip-hammer, and electromagnetic means forreleasing the triphaminer; substantially as described.

9. In a device of the character described,

the combination of a latch, bolt arranged to release the latch, atrip-hammer arranged to actuate the bolt by a direct hammer-blowthereon, means for holding said hammer, means for releasing the hammer,and means for resetting the hammer; substantially as described. 3 10. Ina device of the character described, a normally open valve, a lever-armconnected thereto, a rod hung from said leverarin and having a,hookportion, a roller engaged by the hook portion, and a trip-hammerarranged to disengage the hook portion from the roller; substantiallyas'described.

11. In mechanism of the class described, a

normally open valve, connections arranged to close said Valve by theirWeight, and a latch device normally preventing the movement of saidconnections, together with electromagnetic, and manual means forreleasing the latch device under pr determined conditions substantiallyas described.

12. In mechanism of the character described, a normally open valve,connections arranged to close said valve by their Weight, and having ahook member, means with which said hook member is arranged to en-. gage,a sliding bolt arranged to'contact with the hook member, and atrip-hammer device for actuating the bolt; substantially as described.

In testimony whereof we have hereunto set our hands.

OSGAR WINTER. FRED WALTER WATERMAN.

Witnesses:

NORMAN F. HOLTER, GEORGE E. SPERLING.

